Tooth USB Flashdrive 4GB is made of silicone material, great for your dental, medical and health professional customers!With its unique design, the USB flash drive easily fits USB ports and blends in with your tablets, notebooks, TVs or car audio players. Whether it's your favorite pictures, music collection, video collection or your work documents, the USB flash drive gives you the ever-present storage you need in a compact and portable device.2GB,4GB,8GB,16GB,32GB,64GB are available.